7. From this lab we see that to map the electric field of an unknown charge distribution (or pattern), we would .a) first draw the charge distribution with all the charges. The map of the electric field is exactly the same shape as the charge distributionb) first measure the electric potential (since it is easier to measure) and draw the equipotential lines. Then draw lines parallel to these equipotential lines to make a visual map of the electric fieldc) first measure the electric potential (since it is easier to measure) and draw the equipotential lines. Then draw perpendicular lines to these equipotential lines to make a visual map of the electric fieldd) measure the electric field directly and then draw the electric field lines